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关于给水度的定义基本上有下列两种:“饱和容水量与最大分子容水量的差值;饱水岩土在重力作用下释出水的体积与岩土体积之比。第一种定义是不恰当的。因为饱水岩土受重力作用释放水时,在任何情况下都不可能释放到仅仅剩下薄膜水。因此,这一定义从六十年代以来,人们就不采用了。后一定义避免了前一种定义的缺陷。但是“饱水岩土在重力作用下排水”是岩土从饱水状态转变为非饱水状态的过程,然而此种定义并没有反映包气带的持水特征或含水率分布特征。因此该定义必
The definition of water supply basically has the following two kinds: “the difference between the saturated water content and the maximum water content of the molecule; the ratio of the volume of water released by gravity to the volume of rock-soil volume under the action of gravity.” The first definition is not It is not possible to release thin film of water under any circumstances when saturated water is released by gravity, so this definition has not been adopted since the 1960s. Avoid the shortcomings of the former definition, but “the drainage of saturated soil under the action of gravity” is the process of geotechnical transformation from a saturated to a non-saturated soil. However, this definition does not reflect the water holding capacity Characteristics or moisture content distribution characteristics. Therefore, the definition must